| exploratory(adjective, new, opening, unsettled, trial) | |
| fixed(limited, restricted) | |
| flitting | |
| fly-by-night | |
| fugacious | |
| guarded(limited, restricted, conditions, restrictive) | |
| imitation(extra, auxiliary, supernumerary) | |
| insubstantial | |
| mitigated(adjective, qualified) | |
| mock(extra, auxiliary, supernumerary) | |
| near(preposition, reasonable, like, fair, extra) | |
| non-essential | |
| proxy(extra, auxiliary, supernumerary) | |
| reserved(adjective, limited, qualified, restricted) | |
| short | |
| spare | |
| stipulatory | |
| temp(noun, adjective) | |
| testing(adjective, tentative, experimental, probationary, investigative) | |
| trial-and-error(adjective, new, trial, untried, tentative) |
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| APA | Smart Define. (2016). provisional thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/provisional/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "provisional thesaurus" https://smartdefine.org/provisional/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, provisional thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/provisional/thesaurus/synonyms>. |
| MLA | Smart Define. "provisional thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/provisional/thesaurus/synonyms> |